Hydrocarbon incandescent lamp.



No. 642,942. Patented Feb. 6, I900.

} c. E. WHITE. HYDRUCARBON INCANDESCENT LAMP.

(Application filed Aug. 9, 1899 (No Model.

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UNTTED STATES PATENT @EEICE.

CHARLES E. WHITE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THEWELSBACH LIGHT COMPANY, OF GLOUCESTER CITY, NEW JERSEY.

HYDROCARBON INCANDESCENT LAMP.

SPECIFICATION forming part of Letters Patent No. 642,942, dated February6, 1900.

Application filed August 91 1899- To ctlZ whom it may concern.-

Be it known that 1, CHARLES E. WHITE, a citizen of the United States,residing at the city of Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Hydrocarbon Incandescent Lamps,of which the following is aspecification.

The objects of the invention are to provide a comparatively simple,efticient, and inexpensive hydrocarbon-lamp for heating WVelsbach andother mantles; to simplify, improve, and render more efficient the meansby which the customary jet of oil is created, and to provide for theconvenient removal of the depositions of carbon which are likely tooccur in all lamps of the type to which the invention relates.

My invention consists of the improvements hereinafter described andclaimed.

The nature, characteristic features, and scope of the invention will bemore fully understood from the following description, taken inconnection with the accompanying drawings, forming part hereof, and inwhich- Figure 1 is a view, partly in side elevation, illustrating ahydrocarbon-lamp embodying features of my invention. Fig. 2 is a Viewdrawn to an enlarged scale and illustrating in central section detailsof construction embodying features of my invention. Fig. 3 is atransverse sectional view taken on the line 3 3 of Fig. 2. Fig. 4 is atop or plan view showing certain of the parts referred to in Fig. 2 andhereinafter described, and Figs. 5 and 6 are respectively views drawn toan enlarged scale and showing in transverse section and in plane theremovable gas-check.

In the drawings, 1 is an oil fount or reservoir, from which oil issupplied past the valve 2 and through the oil-pipe 3, in which it isvaporized, and from thence the vapor is discharged into the mixing-tube4, which receives at its upper end a supply of air, and the resultingmixture of air and vapor is supplied to and consumed at the burner 5.Between the oil-supply pipe 3 and the mixing-tube 4 there is a coupling.(Shown in Fig. 2.) Upon the upper end of the pipe 4 is mounted a spider6, which is provided with openings 7, Fig. 3, for the ingress of air andwith abridgepiece 8 for attachment to a nut 9. This nut Serial No.726,650. (No model.)

9 is internally provided with a chamber, and the orifice at its lowerend is somewhat contracted, so as to provide a shoulder orinwardly-extending flange. This flange supports the gas-check 10. Thelatter is removable and consists of a sheet of comparatively thin metalthrough which a hole is punched. The side walls of this hole are ofsomewhatconical form and project toward the pipe 4. Such a plate isreadily made and is comparatively inexpensive,and it may be convenientlyremoved and freed from carbon and the like, which in the use of thedevice accumulates upon it, or, if necessary, the check may be readilyremoved and replaced by a new one. By the provision of checks havingapertures therein of different sizes it is possible to employ one whichgives the best results under varying conditions, such as are encounteredin the construction of different types and styles of lamps. The tubularmember 11 is fitted within the nut 9, and its upper end is pressed bythe pipe 3 and its lower end serves to hold the gas-check in place. Theupper end of this tubular member 11 is provided with a cap 12, of whichthe vertical walls are perforated comparatively near to the top of thecap and as at 13. The advantage of this construction is that theimpurities by falling into the space 14 do not reach the interior of thecap and do not clog or interfere with the opening or openings in thecheck.

In use oil is vaporized in the pipe 3, the impurities collect in thespace 14, and the vapor escapes by the openings 13 into the interior ofthe member 11, from which it is discharged through the gas-check 10 inthe form of a jet. Air entering at '7 mingles with the vapor of thisjet, and the mixture is carried along through the pipe 4 and consumed atthe burner 5.

Among the many advantages of the described construction attention may bedirected to the following: All lamps of the type to which the presentinvention relates are subject to being clogged by depositions of carbon.However, by reason of the described improvements the parts mostsubjected to this can be readily removed and cleaned or replaced byothers. For example, the nut 9 may be unscrewed from the pipe 3,whereupon the member 11, as well as the gas-check 10, may be removed andcleaned. If neces sary, they may be replaced by new parts.

It would be obvious to those skilled in the art to which my inventionappertains that modifications may be made in details without departingfrom the spirit thereof. Hence I do not limit myself to the preciseconstruction and arrangement of parts herein set forth and shown in thedrawings; but,

Having thus described the nature and objects of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

1. A coupling for connecting the oil-pipe and mixing-tube of ahydrocarbon-lamp, which comprises the combination of a spider dependingfrom a tubular nut having its internal chamber inwardly flanged at itslower end, a metal plate provided with a perforation andremovablysupported on said flange, and a tubular member located abovesaid plate and in the chamber of the nut and provided at its upper endwith a cap having its curved side walls perforated near its top,substantially as described.

2. The combination in a hydrocarbon-lamp of a coupling providedWithatubular chamber having inwardly-flanged walls, a removablegas-check supported by said walls and a tubular member mounted in saidchamber and superposed on said check and provided with anupwardly-extending cap of which the side walls are perforated near itstop, substantially as described.

In testimony whereof I have hereunto signed my name.

CHARLES E. VVI'IITE.

\Vitnesses:

W. J. J ACKSON, DORA STERNBERGER.

